DBD pressure valve OVERVIEW

DBD pressure valves are direct‑operated poppet relief valves, mainly used for hydraulic system pressure limitation and overload safety protection. System pressure can be manually and steplessly adjusted. Three mounting styles are available: sub‑plate, threaded connection and screw‑in cartridge. Featuring compact structure and fast response, multiple pressure grades and adjustment modes are optional. Widely adopted as safety valves for hydraulic stations, construction machinery and general hydraulic equipment.

Features and Benefits

• DBD pressure valve adopts direct‑operated poppet structure for fast response and dependable sealing.

• Manual stepless pressure adjustment is available with multiple adjustment styles including handwheel, locked handwheel and protected bolt.

• Sub‑plate, threaded and cartridge mounting options enable flexible manifold layout.

• Various pressure grades meet different overload‑protection requirements.

• Compact size ensures space‑saving installation.

• Optional FKM seals accommodate special hydraulic fluids.

• It serves as a reliable mechanical safety valve to prevent system over‑pressure and protect hydraulic components from damage.

Specifications DBD pressure valve

Valve Type: Direct‑operated poppet relief valve
Mounting: Sub‑plate, threaded connection, screw‑in cartridge

Nominal Sizes: NG6, NG10, NG20, NG30
Max. Operating Pressure (Port P/A): 40 MPa (400 bar)
Max. Pressure (Port T): 31.5 MPa (315 bar)
Pressure Setting Ranges: 50 bar, 100 bar, 200 bar, 315 bar, 400 bar

Max. Flow Rate: NG6‑50 L/min; NG10‑120 L/min; NG20‑250 L/min; NG30‑350 L/min
Adjustment modes: Handwheel, locked handwheel, bolt with protective cap

Hydraulic Fluid: Standard mineral hydraulic oil (HLP); FKM seals optional for special media
Viscosity Range: 10‑800 mm²/s
Fluid Temperature: ‑30 ~ +80 °C (NBR seals); ‑20 ~ +80 °C (FKM seals)
Filtration Requirement: ISO 4406 20/18/15 or better

Weight:
            ‑ NG6 DBD: 0.8 kg
            ‑ NG10 DBD: 1.3 kg
            ‑ NG20 DBD: 2.4 kg
            ‑ NG30 DBD: 4.2 kg

Applications

• DBD pressure valves are mechanical safety relief valves for hydraulic overload protection.

• They are widely used in hydraulic power units, machine tools, construction machinery and mobile hydraulic equipment.

• Suitable for main circuit or branch‑circuit pressure limiting.

• Sub‑plate type fits standard hydraulic stations.

• Threaded version for pipe‑mount systems.

• Cartridge type is ideal for manifold block installation.

• Perfect for systems requiring simple, reliable manual pressure setting and over‑pressure safety protection.

  
  

Packaging & Delivery

DBD pressure valve are typically packaged securely to prevent damage during transit. The packaging includes:

Protective Wrapping: To safeguard the pump from environmental damage.

Custom Crates: For larger, heavier pumps, ensuring safe handling.

Documentation: Includes installation, maintenance instructions, and warranty details.

Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.

DBD pressure valve FAQ:

1. What is the DBD pressure valve ?

DBD pressure valve is a direct‑operated poppet relief valve. It acts as mechanical overload safety component for hydraulic systems and allows manual stepless pressure adjustment. Available in sub‑plate, threaded and cartridge mounting styles. Compact structure with fast response, multiple pressure grades and adjustment options. Mainly used for pressure limiting and equipment over‑pressure protection in hydraulic stations and general machinery.

2. What makes the DBD pressure valve ?

3. What is the working pressure range of DBD pressure valve ?

The maximum working pressure at main port P is up to 40 MPa (400 bar), while return port T allows max 31.5 MPa (315 bar). Multiple spring‑defined pressure ranges (50 bar, 100 bar, 200 bar, 315 bar, 400 bar) are selectable to satisfy different system pressure‑limiting requirements.

4. Can DBD pressure valve replace other brands?

7. How can I get a quotation quickly

Please provide the following details:

• Model or displacement

• Working pressure

• Speed

• Quantity
  We will reply within 12 hours with a competitive quotation.

  
  

Certifications & Quality Assurance

DBD pressure valve are manufactured in compliance with international standards, ensuring high performance and reliability:

ISO 9001: Certified for quality management systems.

CE Certification: Ensures compliance with European safety, health, and environmental protection standards.

RoHS Compliance: Ensures the pump does not contain hazardous materials.

Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.

FAQ

1.What's our advantages?

Factory established in 2005;

With a great deal of production experience;

80+ employees become the professional team;

Constant updated ERP system ensure efficiency of work;

Sophisticated equipment ehanced the accuracy of products;

Professional salesmen provide the greast service;

With a large number of famous customers all over the world;

Great after-sales service;

With the long term cooperation with famous logistics and express company in China,provide the better goods service.

2.What is your payment terms?

Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.

3.Can you make my own brand on the products?

Of course we can. Just send me your logo  we can make it for you.

4.What is our main export market?

America(40.5%):USA, Canada, Argentina, Brazil

Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.

Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.

Others(5.8%).

The Green hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.

The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.